CN103700313B - A kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating - Google Patents

A kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating Download PDF

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Publication number
CN103700313B
CN103700313B CN201310723314.XA CN201310723314A CN103700313B CN 103700313 B CN103700313 B CN 103700313B CN 201310723314 A CN201310723314 A CN 201310723314A CN 103700313 B CN103700313 B CN 103700313B
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simulating
alternating current
power supply
experimental
voltage
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CN103700313A (en
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张建国
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Suzhou Industrial Park Institute of Vocational Technology
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Suzhou Industrial Park Institute of Vocational Technology
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Abstract

The open a kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating of the present invention, including: alternating current power supply, provide alternating current to whole experimental system for simulating;Converter, its input is connected with the outfan of described alternating current power supply described alternating current carries out frequency-conversion processing formation three-phase alternating current;Motor, is electrically connected with to switch on power and drives simulation motor speed pinion rotation with the outfan of described converter;Crankshaft position sensor, including transducer magnetic head and signal rotor, described signal rotor is arranged on described simulation motor speed gear to detect described motor speed;Switching Power Supply and digital frequency meter, Switching Power Supply is connected between alternating current power supply and digital frequency meter, and digital frequency meter signal output part with described crankshaft position sensor further is connected.The present invention passes through inverter control motor, it is possible to the high-precision simulation of engine rotating speed simulated needed for experiment, improves degree of accuracy and the operability of experiment.

Description

A kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating
Technical field
The present invention relates to a kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating.
Background technology
In electromechanical teaching is tested, engine electric-controlled system experimental provision is one of requisite practice course.Existing engine electric-controlled system experimental provision the most all uses common DC motor, the rotating speed of direct current generator is regulated by changing the voltage of direct current generator, motor in some experimental provision does not even possess speed-regulating function, experiment content is the simplest, differ greatly with the working condition of actual engine, be unfavorable for that student preferably grasps and understands the knowledge of correspondence.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating, use the voltage-controlled technology of frequency conversion, pass through inverter control motor, make the linear change of voltage of converter out-put supply frequency and described Measuring opening signal, described crankshaft position sensor and CMPS Camshaft Position Sensor can detect motor speed and cylinder piston position, and detection signal is sent to electronic control unit process, it is ensured that whole system runs well;High-precision can simulate the simulation of engine rotating speed needed for experiment, improve degree of accuracy and the operability of experiment.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating, including: alternating current power supply, provide alternating current to whole experimental system for simulating;Converter, its input is connected with the outfan of described alternating current power supply described alternating current carries out frequency-conversion processing formation three-phase alternating current;Motor, is electrically connected with to switch on power and drives simulation motor speed pinion rotation with the outfan of described converter;Crankshaft position sensor, including transducer magnetic head and signal rotor, described signal rotor is arranged on described simulation motor speed gear to detect described motor speed;Switching Power Supply and digital frequency meter, described Switching Power Supply is connected between described alternating current power supply and described digital frequency meter, and described digital frequency meter signal output part with described crankshaft position sensor further is connected.
In a preferred embodiment of the present invention, the signal output part of described crankshaft position sensor is also electrically connected with electronic control unit.
In a preferred embodiment of the present invention, described experimental system for simulating farther includes to detect the CMPS Camshaft Position Sensor of cylinder piston position, and the signal output part of described CMPS Camshaft Position Sensor is electrically connected with described electronic control unit.
In a preferred embodiment of the present invention, described experimental system for simulating farther includes: electronic throttle potentiometer, detects the aperture size of automotive engine throttle and exports Measuring opening signal;Voltage control signal processes circuit, is connected between described electronic throttle potentiometer and described converter, and to receive described Measuring opening signal, the Measuring opening signal after processing is sent to converter.
In a preferred embodiment of the present invention, the aperture size of the air throttle of described automobile engine is directly proportional to the voltage swing of described Measuring opening signal.
In a preferred embodiment of the present invention, the potentiometric power input of described electronic throttle is electrically connected with the electric energy output end of described Switching Power Supply.
In a preferred embodiment of the present invention, described experimental system for simulating farther includes digital voltmeter, and the test side of described digital voltmeter is electrically connected with the potentiometric outfan of electronic throttle.
The invention has the beneficial effects as follows: the present invention uses the voltage-controlled technology of frequency conversion, pass through inverter control motor, make the linear change of voltage of converter out-put supply frequency and described Measuring opening signal, described crankshaft position sensor and CMPS Camshaft Position Sensor can detect motor speed and cylinder piston position, and detection signal is sent to electronic control unit process, it is ensured that whole system runs well;High-precision can simulate the simulation of engine rotating speed needed for experiment, improve degree of accuracy and the operability of experiment.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the electrical block diagram of a preferred embodiment of the present invention.
In accompanying drawing, the labelling of each parts is as follows: VAC, alternating current power supply;M, motor;ECU, electronic control unit;1, simulation motor speed gear.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating, including: alternating current power supply VAC, provide alternating current to whole experimental system for simulating;Converter, its input and described alternating current power supply VACOutfan connect with described alternating current is carried out frequency-conversion processing formed three-phase alternating current;Motor M, is electrically connected with to switch on power and drives simulation motor speed gear 1 to rotate with the outfan of described converter;Crankshaft position sensor, including transducer magnetic head and signal rotor, described signal rotor is arranged on described simulation motor speed gear to detect described motor M rotating speed;Switching Power Supply and digital frequency meter, described Switching Power Supply is connected to described alternating current power supply VACWith between described digital frequency meter, described digital frequency meter signal output part with described crankshaft position sensor further is connected.
Wherein, the signal output part of described crankshaft position sensor is also electrically connected with electronic control unit ECU.
Experimental system for simulating of the present invention farther includes to detect the CMPS Camshaft Position Sensor of cylinder piston position, and the signal output part of described CMPS Camshaft Position Sensor is electrically connected with described electronic control unit ECU.
Described experimental system for simulating farther includes: electronic throttle potentiometer, detects the aperture size of automotive engine throttle and exports Measuring opening signal;Voltage control signal processes circuit, is connected between described electronic throttle potentiometer and described converter, and to receive described Measuring opening signal, the Measuring opening signal after processing is sent to converter.
In the present invention, the aperture size of the air throttle of described automobile engine is directly proportional to the voltage swing of described Measuring opening signal.The potentiometric power input of described electronic throttle is electrically connected with the electric energy output end of described Switching Power Supply.
Described experimental system for simulating farther includes digital voltmeter, and the test side of described digital voltmeter is electrically connected with the potentiometric outfan of electronic throttle.
The present invention uses the voltage-controlled technology of frequency conversion, by inverter control motor M, make the linear change of voltage of converter out-put supply frequency and described Measuring opening signal, described crankshaft position sensor and CMPS Camshaft Position Sensor can detect motor M rotating speed and cylinder piston position, and detection signal is sent to electronic control unit ECU process, it is ensured that whole system runs well.
In this embodiment, this Frequency Converter Control mode can make under the extremely low rotating speed that motor operates in several hertz, the signal waveform that engine crankshaft position sensor is sent can be clearly observed with oscillograph, high-precision can simulate the simulation of engine rotating speed needed for experiment, degree of accuracy and the operability of experiment are greatly improved.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.

Claims (5)

1. an automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating, it is characterised in that including:
Alternating current power supply (VAC), provide alternating current to whole experimental system for simulating;
Converter, its input is connected with the outfan of described alternating current power supply described alternating current carries out frequency-conversion processing formation three-phase alternating current;
Motor (M), is electrically connected with to switch on power and drives simulation motor speed gear (1) to rotate with the outfan of described converter;
Crankshaft position sensor, including transducer magnetic head and signal rotor, described signal rotor is arranged on described simulation motor speed gear to detect described motor speed;
Switching Power Supply and digital frequency meter, described Switching Power Supply is connected between described alternating current power supply and described digital frequency meter, and described digital frequency meter signal output part with described crankshaft position sensor further is connected;The signal output part of described crankshaft position sensor is also electrically connected with electronic control unit (ECU);Described experimental system for simulating farther includes to detect the CMPS Camshaft Position Sensor of cylinder piston position, and the signal output part of described CMPS Camshaft Position Sensor is electrically connected with described electronic control unit.
Automotive engine throttle the most according to claim 1 voltage-controlled frequency conversion motor experimental system for simulating, it is characterised in that described experimental system for simulating farther includes:
Electronic throttle potentiometer, detects the aperture size of automotive engine throttle and exports Measuring opening signal;
Voltage control signal processes circuit, is connected between described electronic throttle potentiometer and described converter, and to receive described Measuring opening signal, the Measuring opening signal after processing is sent to converter.
Automotive engine throttle the most according to claim 2 voltage-controlled frequency conversion motor experimental system for simulating, it is characterised in that the aperture size of the air throttle of described automobile engine is directly proportional to the voltage swing of described Measuring opening signal.
Automotive engine throttle the most according to claim 3 voltage-controlled frequency conversion motor experimental system for simulating, it is characterised in that the potentiometric power input of described electronic throttle is electrically connected with the electric energy output end of described Switching Power Supply.
Automotive engine throttle the most according to claim 3 voltage-controlled frequency conversion motor experimental system for simulating, it is characterized in that, described experimental system for simulating farther includes digital voltmeter, and the test side of described digital voltmeter is electrically connected with electronic throttle potentiometer outfan.
CN201310723314.XA 2013-12-25 2013-12-25 A kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating Active CN103700313B (en)

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CN107244426A (en) * 2016-03-25 2017-10-13 哈尔滨飞机工业集团有限责任公司 A kind of transporter undercarriage hydraulic pressure testing device
CN106057014A (en) * 2016-08-10 2016-10-26 钦州学院 Automobile throttle valve teaching platform
CN107782998A (en) * 2017-11-27 2018-03-09 重庆长安汽车股份有限公司 A kind of experimental rig and test method of ECU identifications magneto electric type crankshaft position sensor signal

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US5044956A (en) * 1989-01-12 1991-09-03 Atari Games Corporation Control device such as a steering wheel for video vehicle simulator with realistic feedback forces
FR2678884B1 (en) * 1991-07-12 1996-08-14 Sextant Avionique Rotary actuator capable of generating on the handwheel of a control system, a variable resistant torque according to adaptive law.
CN200976563Y (en) * 2006-06-23 2007-11-14 钟诗清 Main driving mechanism of AC electric vehicle
CN101363380A (en) * 2008-10-09 2009-02-11 张和君 Electric-controlled petrol engine work system
CN201449690U (en) * 2009-04-21 2010-05-05 张建国 Electric control system experiment table of automobile engine
CN201425790Y (en) * 2009-06-19 2010-03-17 牛连宝 Foldable training terminal table
CN201650536U (en) * 2010-02-11 2010-11-24 北京经纬恒润科技有限公司 Simulating test board of engine oil pump
CN202306939U (en) * 2011-06-27 2012-07-04 东莞职业技术学院 Electronic control engine trouble shooting practical training platform
CN202434105U (en) * 2011-12-27 2012-09-12 嘉兴市佳乐科仪有限公司 Teaching experiment system having frequency-conversion speed-regulation simulation load
CN204066571U (en) * 2013-12-25 2014-12-31 苏州工业园区职业技术学院 The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle

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